/* roulang page: index */
:root{
      --rl-primary:#1f63ff;
      --rl-primary-dark:#164bd2;
      --rl-primary-soft:#eaf1ff;
      --rl-secondary:#0f766e;
      --rl-accent:#f59e0b;
      --rl-bg:#f6f9ff;
      --rl-surface:#ffffff;
      --rl-surface-2:#f0f5ff;
      --rl-text:#102033;
      --rl-muted:#66758a;
      --rl-subtle:#8a97aa;
      --rl-border:#dfe7f3;
      --rl-border-strong:#cbd8ea;
      --rl-danger:#dc2626;
      --rl-success:#16a34a;
      --rl-radius-xs:10px;
      --rl-radius-sm:14px;
      --rl-radius-md:20px;
      --rl-radius-lg:28px;
      --rl-radius-xl:36px;
      --rl-shadow-sm:0 8px 24px rgba(31,99,255,.08);
      --rl-shadow-md:0 18px 48px rgba(16,32,51,.12);
      --rl-shadow-lg:0 30px 80px rgba(31,99,255,.16);
      --rl-container:1180px;
      --rl-header:76px;
      --rl-transition:all .22s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--rl-text);
      background:
        radial-gradient(circle at 15% 6%, rgba(31,99,255,.10), transparent 28%),
        radial-gradient(circle at 82% 14%, rgba(15,118,110,.08), transparent 24%),
        linear-gradient(180deg,#fbfdff 0%,var(--rl-bg) 54%,#ffffff 100%);
      line-height:1.72;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }

    a{color:inherit;text-decoration:none;transition:var(--rl-transition)}
    a:hover{color:var(--rl-primary)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{border:0}
    ::selection{background:rgba(31,99,255,.16);color:var(--rl-primary-dark)}

    .container-rl{
      width:min(var(--rl-container), calc(100% - 40px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(223,231,243,.86);
      box-shadow:0 12px 34px rgba(16,32,51,.05);
    }

    .navbar{
      min-height:var(--rl-header);
      padding:12px 0;
    }

    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      max-width:520px;
      min-width:0;
      color:var(--rl-text);
      font-weight:900;
      letter-spacing:-.02em;
    }

    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--rl-primary),#63a1ff 55%,var(--rl-secondary));
      box-shadow:0 12px 30px rgba(31,99,255,.25);
      flex:0 0 auto;
    }

    .brand-text{
      display:block;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      font-size:1.02rem;
    }

    .navbar-toggler{
      border:1px solid var(--rl-border);
      border-radius:14px;
      padding:10px 12px;
      background:#fff;
      box-shadow:var(--rl-shadow-sm);
    }

    .navbar-toggler:focus{
      box-shadow:0 0 0 4px rgba(31,99,255,.12);
    }

    .navbar-nav{
      gap:8px;
      align-items:center;
    }

    .nav-link{
      border-radius:999px;
      color:var(--rl-muted);
      font-weight:800;
      padding:10px 18px!important;
    }

    .nav-link:hover,
    .nav-link:focus{
      color:var(--rl-primary);
      background:var(--rl-primary-soft);
    }

    .nav-link.active{
      color:var(--rl-primary-dark)!important;
      background:#eef4ff;
      box-shadow:inset 0 0 0 1px rgba(31,99,255,.12);
    }

    .lang-pill{
      display:flex;
      align-items:center;
      gap:6px;
      padding:7px;
      border:1px solid var(--rl-border);
      border-radius:999px;
      background:#fff;
      box-shadow:var(--rl-shadow-sm);
      white-space:nowrap;
    }

    .lang-pill span{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:32px;
      padding:0 12px;
      border-radius:999px;
      color:var(--rl-muted);
      font-size:.86rem;
      font-weight:800;
    }

    .lang-pill span.active{
      color:#fff;
      background:var(--rl-primary);
      box-shadow:0 8px 20px rgba(31,99,255,.2);
    }

    .btn-rl{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:900;
      line-height:1.1;
      cursor:pointer;
      transition:var(--rl-transition);
      border:1px solid transparent;
      user-select:none;
    }

    .btn-rl:focus,
    .form-control:focus,
    .form-select:focus,
    textarea:focus{
      outline:0;
      box-shadow:0 0 0 4px rgba(31,99,255,.14);
      border-color:rgba(31,99,255,.5);
    }

    .btn-primary-rl{
      background:linear-gradient(135deg,var(--rl-primary),#5793ff);
      color:#fff;
      box-shadow:0 16px 34px rgba(31,99,255,.28);
    }

    .btn-primary-rl:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 22px 46px rgba(31,99,255,.34);
    }

    .btn-light-rl{
      color:var(--rl-primary-dark);
      background:#fff;
      border-color:var(--rl-border);
      box-shadow:var(--rl-shadow-sm);
    }

    .btn-light-rl:hover{
      color:var(--rl-primary-dark);
      transform:translateY(-2px);
      border-color:rgba(31,99,255,.26);
      box-shadow:var(--rl-shadow-md);
    }

    .btn-ghost-rl{
      color:var(--rl-text);
      background:rgba(255,255,255,.72);
      border-color:rgba(203,216,234,.9);
    }

    .btn-ghost-rl:hover{
      color:var(--rl-primary);
      background:#fff;
      border-color:rgba(31,99,255,.22);
    }

    .section{
      padding:86px 0;
      position:relative;
    }

    .section-tight{padding:64px 0}
    .section-alt{background:linear-gradient(180deg,rgba(240,245,255,.78),rgba(255,255,255,.92))}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:26px;
      margin-bottom:30px;
    }

    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:var(--rl-primary-dark);
      background:var(--rl-primary-soft);
      border:1px solid rgba(31,99,255,.14);
      font-size:.86rem;
      font-weight:900;
      margin-bottom:12px;
    }

    .section-title{
      margin:0;
      font-size:clamp(1.75rem,3vw,2.75rem);
      line-height:1.18;
      letter-spacing:-.035em;
      font-weight:950;
      color:var(--rl-text);
    }

    .section-desc{
      max-width:660px;
      margin:12px 0 0;
      color:var(--rl-muted);
      font-size:1.03rem;
    }

    .badge-rl{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 12px;
      border-radius:999px;
      font-size:.84rem;
      font-weight:900;
      color:var(--rl-primary-dark);
      background:#eef4ff;
      border:1px solid rgba(31,99,255,.14);
      white-space:nowrap;
    }

    .badge-green{
      color:#0f766e;
      background:#e8fbf7;
      border-color:rgba(15,118,110,.15);
    }

    .badge-warm{
      color:#a15c00;
      background:#fff7e6;
      border-color:rgba(245,158,11,.2);
    }

    .card-rl{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(223,231,243,.9);
      border-radius:var(--rl-radius-lg);
      box-shadow:var(--rl-shadow-sm);
      transition:var(--rl-transition);
      overflow:hidden;
    }

    .card-rl:hover{
      transform:translateY(-4px);
      box-shadow:var(--rl-shadow-md);
      border-color:rgba(31,99,255,.2);
    }

    .hero{
      padding:56px 0 72px;
    }

    .hero-shell{
      border-radius:var(--rl-radius-xl);
      border:1px solid rgba(203,216,234,.9);
      background:
        linear-gradient(135deg,rgba(255,255,255,.94) 0%,rgba(240,245,255,.88) 58%,rgba(231,246,255,.86) 100%);
      box-shadow:var(--rl-shadow-lg);
      overflow:hidden;
      position:relative;
    }

    .hero-shell::before{
      content:"";
      position:absolute;
      inset:auto -8% -38% auto;
      width:520px;
      height:520px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(31,99,255,.18),transparent 67%);
      pointer-events:none;
    }

    .hero-main{
      padding:44px;
      position:relative;
      z-index:2;
    }

    .hero-grid{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:30px;
      align-items:stretch;
    }

    .hero h1{
      margin:16px 0 18px;
      font-size:clamp(2.15rem,5vw,4.3rem);
      line-height:1.06;
      letter-spacing:-.055em;
      font-weight:950;
      color:#0b1d33;
    }

    .hero-lead{
      max-width:780px;
      margin:0;
      color:#526176;
      font-size:1.1rem;
    }

    .hero-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }

    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
      align-items:center;
    }

    .hero-note{
      color:var(--rl-muted);
      font-size:.94rem;
      margin:0;
    }

    .qualification{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:28px;
    }

    .qual-item{
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(223,231,243,.92);
    }

    .qual-item strong{
      display:block;
      font-size:1.28rem;
      line-height:1.1;
      color:var(--rl-primary-dark);
      font-weight:950;
    }

    .qual-item span{
      display:block;
      margin-top:6px;
      color:var(--rl-muted);
      font-size:.9rem;
    }

    .trial-panel{
      padding:24px;
      background:rgba(255,255,255,.94);
      border-left:1px solid rgba(223,231,243,.9);
      min-height:100%;
    }

    .trial-card{
      height:100%;
      padding:24px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--rl-border);
      box-shadow:0 20px 50px rgba(16,32,51,.10);
    }

    .trial-card h2{
      font-size:1.32rem;
      margin:0 0 8px;
      font-weight:950;
      letter-spacing:-.02em;
    }

    .trial-card p{
      margin:0 0 18px;
      color:var(--rl-muted);
      font-size:.96rem;
    }

    .form-label{
      color:#24364f;
      font-weight:850;
      font-size:.92rem;
      margin-bottom:8px;
    }

    .form-control,
    .form-select{
      min-height:48px;
      border-radius:16px;
      border:1px solid var(--rl-border);
      background:#fbfdff;
      color:var(--rl-text);
      padding:11px 14px;
    }

    textarea.form-control{
      min-height:96px;
      resize:vertical;
    }

    .form-hint{
      margin-top:10px;
      color:var(--rl-subtle);
      font-size:.86rem;
    }

    .mini-checks{
      display:grid;
      gap:10px;
      margin:18px 0;
    }

    .mini-check{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--rl-muted);
      font-size:.92rem;
    }

    .mini-check i{
      width:20px;
      height:20px;
      border-radius:50%;
      display:inline-grid;
      place-items:center;
      flex:0 0 auto;
      color:#fff;
      font-style:normal;
      font-size:.74rem;
      font-weight:950;
      background:var(--rl-success);
      margin-top:2px;
    }

    .vertical-layout{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:28px;
      align-items:start;
    }

    .vertical-intro{
      position:sticky;
      top:100px;
      padding:30px;
    }

    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }

    .vertical-board{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:16px;
      align-items:stretch;
    }

    .vertical-card{
      min-height:360px;
      padding:18px;
      border-radius:28px;
      border:1px solid rgba(223,231,243,.92);
      background:
        linear-gradient(180deg,rgba(255,255,255,.32),rgba(255,255,255,.82)),
        linear-gradient(145deg,#dbeafe,#f8fbff);
      box-shadow:var(--rl-shadow-sm);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }

    .vertical-card:nth-child(2){
      margin-top:34px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.28),rgba(255,255,255,.86)),
        linear-gradient(145deg,#ccfbf1,#eef6ff);
    }

    .vertical-card:nth-child(3){
      margin-top:68px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.25),rgba(255,255,255,.88)),
        linear-gradient(145deg,#fef3c7,#eaf1ff);
    }

    .vertical-card::after{
      content:"";
      position:absolute;
      width:170px;
      height:170px;
      border-radius:50%;
      background:rgba(31,99,255,.12);
      right:-62px;
      top:-42px;
    }

    .vertical-card .num{
      font-size:3.2rem;
      line-height:1;
      font-weight:950;
      color:rgba(31,99,255,.2);
      letter-spacing:-.08em;
    }

    .vertical-card h3{
      font-size:1.18rem;
      font-weight:950;
      margin:18px 0 10px;
      position:relative;
      z-index:1;
    }

    .vertical-card p{
      margin:0;
      color:var(--rl-muted);
      font-size:.96rem;
      position:relative;
      z-index:1;
    }

    .vertical-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-top:22px;
      color:var(--rl-muted);
      font-size:.86rem;
      position:relative;
      z-index:1;
    }

    .hot-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:start;
    }

    .rank-list{
      display:grid;
      gap:12px;
    }

    .rank-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      padding:16px;
      border-radius:22px;
      border:1px solid var(--rl-border);
      background:#fff;
      transition:var(--rl-transition);
    }

    .rank-item:hover{
      transform:translateX(4px);
      border-color:rgba(31,99,255,.22);
      box-shadow:var(--rl-shadow-sm);
    }

    .rank-no{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:950;
      background:linear-gradient(135deg,var(--rl-primary),#79aaff);
      box-shadow:0 10px 20px rgba(31,99,255,.18);
    }

    .rank-item h3{
      font-size:1rem;
      margin:0 0 4px;
      font-weight:950;
    }

    .rank-item p{
      margin:0;
      color:var(--rl-muted);
      font-size:.9rem;
    }

    .trend{
      color:var(--rl-secondary);
      font-weight:950;
      white-space:nowrap;
    }

    .kpi-panel{
      padding:24px;
      border-radius:var(--rl-radius-lg);
      background:
        linear-gradient(180deg,#ffffff,#f6f9ff);
      border:1px solid var(--rl-border);
      box-shadow:var(--rl-shadow-sm);
    }

    .kpi-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      margin-bottom:20px;
    }

    .kpi-card{
      padding:18px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--rl-border);
    }

    .kpi-card strong{
      display:block;
      font-size:1.72rem;
      line-height:1.1;
      color:var(--rl-primary-dark);
      font-weight:950;
      letter-spacing:-.04em;
    }

    .kpi-card span{
      display:block;
      margin-top:6px;
      color:var(--rl-muted);
      font-size:.88rem;
    }

    .bar-list{
      display:grid;
      gap:13px;
      margin-top:18px;
    }

    .bar-item{
      display:grid;
      gap:8px;
    }

    .bar-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      color:#273a55;
      font-weight:850;
      font-size:.92rem;
    }

    .bar-track{
      height:10px;
      border-radius:999px;
      background:#e9eff8;
      overflow:hidden;
    }

    .bar-fill{
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--rl-primary),#6fa7ff);
    }

    .compare-strip{
      margin-top:20px;
      padding:16px;
      border-radius:22px;
      background:#eef7ff;
      border:1px solid rgba(31,99,255,.14);
      color:var(--rl-muted);
      font-size:.94rem;
    }

    .review-wall{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:24px;
      align-items:stretch;
    }

    .quote-large{
      padding:34px;
      border-radius:var(--rl-radius-xl);
      background:#102033;
      color:#fff;
      box-shadow:0 22px 60px rgba(16,32,51,.24);
      position:relative;
      overflow:hidden;
    }

    .quote-large::after{
      content:"";
      position:absolute;
      width:320px;
      height:320px;
      right:-120px;
      bottom:-150px;
      border-radius:50%;
      background:rgba(31,99,255,.35);
    }

    .quote-large blockquote{
      position:relative;
      z-index:1;
      margin:0;
      font-size:1.35rem;
      line-height:1.75;
      font-weight:850;
      letter-spacing:-.02em;
    }

    .quote-large cite{
      position:relative;
      z-index:1;
      display:block;
      margin-top:26px;
      color:#b9c7d9;
      font-style:normal;
    }

    .review-stack{
      display:grid;
      gap:16px;
    }

    .review-card{
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--rl-border);
      box-shadow:var(--rl-shadow-sm);
    }

    .review-card p{
      margin:0;
      color:var(--rl-muted);
      font-size:.95rem;
    }

    .review-author{
      display:flex;
      align-items:center;
      justify-content:space-between;
      margin-top:16px;
      gap:12px;
      font-weight:950;
    }

    .stars{
      color:var(--rl-accent);
      letter-spacing:1px;
      white-space:nowrap;
    }

    .info-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:24px;
      align-items:start;
    }

    .news-list{
      padding:12px;
      border-radius:var(--rl-radius-lg);
      background:#fff;
      border:1px solid var(--rl-border);
      box-shadow:var(--rl-shadow-sm);
    }

    .news-link{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      padding:18px;
      border-radius:20px;
      border-bottom:1px solid var(--rl-border);
    }

    .news-link:last-child{border-bottom:0}
    .news-link:hover{
      background:#f6f9ff;
      color:var(--rl-primary-dark);
    }

    .news-date{
      width:62px;
      height:62px;
      border-radius:20px;
      display:grid;
      place-items:center;
      text-align:center;
      color:var(--rl-primary-dark);
      background:var(--rl-primary-soft);
      font-weight:950;
      line-height:1.1;
      font-size:.9rem;
    }

    .news-link h3{
      margin:0 0 5px;
      font-size:1.02rem;
      font-weight:950;
    }

    .news-link p{
      margin:0;
      color:var(--rl-muted);
      font-size:.92rem;
    }

    .arrow{
      color:var(--rl-subtle);
      font-weight:950;
    }

    .recommend-box{
      padding:26px;
      border-radius:var(--rl-radius-lg);
      background:
        linear-gradient(145deg,#ffffff,#eef4ff);
      border:1px solid var(--rl-border);
      box-shadow:var(--rl-shadow-sm);
    }

    .recommend-box h3{
      margin:0 0 12px;
      font-size:1.25rem;
      font-weight:950;
    }

    .recommend-box p{
      margin:0 0 18px;
      color:var(--rl-muted);
    }

    .topic-list{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }

    .topic-list a{
      display:inline-flex;
      padding:9px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--rl-border);
      color:var(--rl-muted);
      font-weight:850;
      font-size:.9rem;
    }

    .topic-list a:hover{
      color:var(--rl-primary-dark);
      border-color:rgba(31,99,255,.28);
      box-shadow:var(--rl-shadow-sm);
      transform:translateY(-2px);
    }

    .faq-grid{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:26px;
      align-items:start;
    }

    .steps-card{
      padding:26px;
      border-radius:var(--rl-radius-lg);
      background:#fff;
      border:1px solid var(--rl-border);
      box-shadow:var(--rl-shadow-sm);
    }

    .step-item{
      display:flex;
      gap:14px;
      padding:16px 0;
      border-bottom:1px solid var(--rl-border);
    }

    .step-item:last-child{border-bottom:0}
    .step-dot{
      width:34px;
      height:34px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:var(--rl-primary-soft);
      color:var(--rl-primary-dark);
      font-weight:950;
      flex:0 0 auto;
    }

    .step-item h3{
      margin:0 0 4px;
      font-size:1rem;
      font-weight:950;
    }

    .step-item p{
      margin:0;
      color:var(--rl-muted);
      font-size:.92rem;
    }

    .accordion{
      display:grid;
      gap:14px;
    }

    .accordion-item{
      border:1px solid var(--rl-border)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:var(--rl-shadow-sm);
    }

    .accordion-button{
      font-weight:950;
      color:var(--rl-text);
      padding:20px 22px;
      background:#fff;
      box-shadow:none!important;
    }

    .accordion-button:not(.collapsed){
      color:var(--rl-primary-dark);
      background:#f3f7ff;
    }

    .accordion-button:focus{
      box-shadow:0 0 0 4px rgba(31,99,255,.14)!important;
      border-color:transparent;
    }

    .accordion-body{
      color:var(--rl-muted);
      padding:0 22px 22px;
    }

    .plans{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      align-items:stretch;
    }

    .plan-card{
      padding:26px;
      border-radius:var(--rl-radius-lg);
      background:#fff;
      border:1px solid var(--rl-border);
      box-shadow:var(--rl-shadow-sm);
      position:relative;
      transition:var(--rl-transition);
    }

    .plan-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--rl-shadow-md);
    }

    .plan-card.featured{
      border-color:rgba(31,99,255,.36);
      box-shadow:0 22px 56px rgba(31,99,255,.16);
      background:linear-gradient(180deg,#ffffff,#f3f7ff);
    }

    .plan-ribbon{
      position:absolute;
      top:18px;
      right:18px;
    }

    .plan-card h3{
      margin:0 0 10px;
      font-size:1.24rem;
      font-weight:950;
    }

    .plan-price{
      display:flex;
      align-items:flex-end;
      gap:6px;
      margin:18px 0;
    }

    .plan-price strong{
      font-size:2.3rem;
      line-height:1;
      letter-spacing:-.05em;
      font-weight:950;
      color:var(--rl-primary-dark);
    }

    .plan-price span{
      color:var(--rl-muted);
      font-weight:850;
    }

    .plan-card p{
      color:var(--rl-muted);
      margin:0 0 18px;
    }

    .plan-list{
      list-style:none;
      padding:0;
      margin:0 0 22px;
      display:grid;
      gap:10px;
    }

    .plan-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#40536d;
      font-size:.94rem;
    }

    .plan-list li::before{
      content:"✓";
      width:20px;
      height:20px;
      border-radius:50%;
      display:inline-grid;
      place-items:center;
      background:#e8fbf7;
      color:var(--rl-secondary);
      font-size:.78rem;
      font-weight:950;
      flex:0 0 auto;
      margin-top:2px;
    }

    .upgrade-shell{
      border-radius:var(--rl-radius-xl);
      background:
        linear-gradient(135deg,#0f2b55,#194aa6 60%,#0f766e);
      color:#fff;
      overflow:hidden;
      box-shadow:0 28px 80px rgba(16,32,51,.26);
      position:relative;
    }

    .upgrade-shell::before{
      content:"";
      position:absolute;
      width:580px;
      height:580px;
      border-radius:50%;
      background:rgba(255,255,255,.11);
      right:-180px;
      top:-260px;
    }

    .upgrade-grid{
      display:grid;
      grid-template-columns:1fr .82fr;
      gap:28px;
      padding:42px;
      position:relative;
      z-index:1;
      align-items:center;
    }

    .upgrade-shell .section-kicker{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.18);
    }

    .upgrade-shell h2{
      margin:0;
      font-size:clamp(1.9rem,3.2vw,3.2rem);
      line-height:1.12;
      letter-spacing:-.04em;
      font-weight:950;
    }

    .upgrade-shell p{
      color:rgba(255,255,255,.78);
      margin:16px 0 0;
      max-width:680px;
    }

    .upgrade-perks{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }

    .upgrade-perks span{
      display:inline-flex;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.16);
      font-weight:850;
      font-size:.9rem;
    }

    .upgrade-form{
      padding:22px;
      border-radius:28px;
      background:#fff;
      color:var(--rl-text);
      box-shadow:0 20px 60px rgba(0,0,0,.18);
    }

    .upgrade-form h3{
      margin:0 0 8px;
      font-size:1.18rem;
      font-weight:950;
    }

    .upgrade-form p{
      color:var(--rl-muted);
      margin:0 0 16px;
      font-size:.94rem;
    }

    .site-footer{
      padding:54px 0 34px;
      background:#0b1d33;
      color:#d7e2f0;
    }

    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:30px;
      align-items:start;
    }

    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      color:#fff;
      margin-bottom:14px;
    }

    .footer-brand .brand-mark{
      width:40px;
      height:40px;
      border-radius:14px;
    }

    .footer-desc{
      max-width:720px;
      color:#9fb0c6;
      margin:0;
    }

    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
    }

    .footer-links a{
      display:inline-flex;
      padding:9px 12px;
      border-radius:999px;
      color:#c8d6e7;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      font-weight:850;
      font-size:.9rem;
    }

    .footer-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.12);
      transform:translateY(-2px);
    }

    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      margin-top:34px;
      padding-top:24px;
      border-top:1px solid rgba(255,255,255,.1);
      color:#8fa2ba;
      font-size:.9rem;
    }

    .age-warning{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(245,158,11,.12);
      color:#ffe2ad;
      border:1px solid rgba(245,158,11,.24);
      font-weight:850;
    }

    .floating-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:999;
      width:min(760px,calc(100% - 28px));
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 14px 12px 18px;
      border-radius:999px;
      background:rgba(255,255,255,.94);
      border:1px solid rgba(203,216,234,.92);
      box-shadow:0 18px 50px rgba(16,32,51,.16);
      backdrop-filter:blur(18px);
    }

    .floating-cta strong{
      display:block;
      line-height:1.2;
      font-size:.98rem;
    }

    .floating-cta span{
      display:block;
      color:var(--rl-muted);
      font-size:.82rem;
    }

    @media (max-width: 1024px){
      :root{--rl-header:72px}
      .hero-grid,
      .vertical-layout,
      .hot-grid,
      .review-wall,
      .info-grid,
      .faq-grid,
      .upgrade-grid{
        grid-template-columns:1fr;
      }
      .trial-panel{border-left:0;border-top:1px solid var(--rl-border)}
      .vertical-intro{position:relative;top:auto}
      .vertical-board{grid-template-columns:repeat(3,1fr)}
      .vertical-card{min-height:320px}
      .qualification{grid-template-columns:repeat(3,1fr)}
      .section-head{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (max-width: 768px){
      .container-rl{width:min(100% - 28px,var(--rl-container))}
      .navbar-collapse{
        margin-top:12px;
        padding:14px;
        border-radius:22px;
        background:#fff;
        border:1px solid var(--rl-border);
        box-shadow:var(--rl-shadow-md);
      }
      .navbar-nav{align-items:stretch}
      .nav-link{text-align:center}
      .lang-pill{justify-content:center;margin-top:10px}
      .hero{padding:30px 0 54px}
      .hero-main{padding:28px}
      .hero-actions{align-items:stretch}
      .btn-rl{width:100%}
      .qualification,
      .kpi-grid,
      .plans{
        grid-template-columns:1fr;
      }
      .vertical-board{
        display:flex;
        overflow-x:auto;
        padding-bottom:8px;
        scroll-snap-type:x mandatory;
      }
      .vertical-card{
        min-width:250px;
        min-height:330px;
        scroll-snap-align:start;
      }
      .vertical-card:nth-child(2),
      .vertical-card:nth-child(3){margin-top:0}
      .section{padding:62px 0}
      .section-tight{padding:50px 0}
      .news-link{
        grid-template-columns:auto 1fr;
      }
      .news-link .arrow{display:none}
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
      .floating-cta{
        border-radius:24px;
        align-items:flex-start;
        flex-direction:column;
      }
      .floating-cta .btn-rl{width:100%}
    }

    @media (max-width: 520px){
      .brand-text{max-width:230px;font-size:.94rem}
      .hero h1{font-size:2.08rem}
      .hero-main{padding:22px}
      .trial-panel{padding:18px}
      .trial-card{padding:20px}
      .rank-item{
        grid-template-columns:auto 1fr;
      }
      .rank-item .trend{
        grid-column:2;
        justify-self:start;
      }
      .quote-large{padding:26px}
      .quote-large blockquote{font-size:1.08rem}
      .upgrade-grid{padding:26px}
      .section-title{font-size:1.72rem}
      .footer-links a{width:100%;justify-content:center}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}